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Finding the Fourth Proportional to 168,300.90, 252,451.35 and 154,522.80

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Solution

The fourth proportional to 168,300.90, 252,451.35 and 154,522.80 is: 231,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,300.90 : 252,451.35 = 154,522.80 : x
  2. Step 2: Convert to fraction form
    168,300.90/252,451.35 = 154,522.80/x
  3. Step 3: Cross multiply
    168,300.90x = 252,451.35 × 154,522.80
  4. Step 4: Simplify right side
    168,300.90x = 39,009,489,465.78
  5. Step 5: Solve for x
    x = 39,009,489,465.78/168,300.90
  6. Step 6: Final answer
    x = 231,784.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.